feat: initialize role-based access control (RBAC) system with multi-module UI and administrative management controllers

Modules/ContractorManagement/app/Http/Controllers/ContractorController.php

@@ -93,12 +93,8 @@ class ContractorController extends Controller
                     'must_change_password' => true,
                 ]);
 
-                // Provision the account with the role that owns user-management
-                // actions. Keep the legacy Contractor role only for existing
-                // accounts; new contractor admins must use the admin role.
-                $roleName = $contractor->parent_id
-                    ? 'Sub Contractor Admin'
-                    : 'Main Contractor Admin';
+                // Provision every contractor administrator with the single supported contractor role.
+                $roleName = 'Main Contractor Admin';
                 $role = Role::firstOrCreate(['name' => $roleName]);
                 $role->givePermissionTo('users.access');
                 $user->assignRole($role);